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Ladybird October update moves layout off the main thread, adds optimizing JIT and its own Wasm engine
1 report1 sourceupdated 2 hours ago
What happened
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A November 5 report says Ladybird's October 2026 work moved style and layout computation off the main thread, so CSS animations and :hover effects keep running while JavaScript blocks. The browser also gained an optimizing LibJS JIT and a homegrown WebAssembly engine. The report says the new Wasm engine scores about 7x the old one on the JetStream 3 Wasm workload.
Written by AI from the coverage · updated 1 hour ago
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Nov 5
- Hacker News front pageThis Month in Ladybird – October 2026
Ladybird 浏览器在 10 月将样式与布局移出主线程，使 CSS 动画和 :hover 在 JavaScript 阻塞时仍可运行，并新增 LibJS 优化 JIT 与自研 WebAssembly 引擎，后者在 JetStream 3 Wasm 负载上得分约为旧引擎的 7 倍。
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